package cn.lj.controller.admin;

import cn.lj.pojo.User;
import cn.lj.service.UserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.servlet.mvc.support.RedirectAttributes;

import javax.servlet.http.HttpSession;

/**
 * @author lj
 * @Description: 登录表现层web
 * @date 2020-11-26 21:08
 * @QQ 851477108
 */

@Controller
@RequestMapping("/admin")
public class LoginController {
    @Autowired
    private UserService userService;

    @GetMapping()
    public String loginPage(){
        return "admin/login";
    }

    @PostMapping("/login")
    public String login(@RequestParam String username,
                        @RequestParam String password,
                        HttpSession session,
                        RedirectAttributes attributes) {
        User user = userService.checkUser(username, password);
        if (user != null) {
            user.setPassword(null);
            session.setAttribute("user",user);
            return "admin/index";
        } else {
            attributes.addFlashAttribute("message", "用户名和密码错误");
            return "redirect:/admin";
        }
    }

    @GetMapping("/logout")
    public String logout(HttpSession session){
        session.removeAttribute("user");
        return "redirect:/admin";
    }
}
